package org.example;

/**
 * Hello world!
 */
public class App {
    public static void main(String[] args) {

        System.out.println("Hello World!");

        Student s1 = new Student();
        s1.setId(1001);
        s1.setName("张三");
        s1.setAge(22);

        System.out.println(s1);


    }
}
